package com.sub.basic;

import java.nio.charset.Charset;

/**
 * @ClassName DataType
 * @Description: TODO
 * @Author Submerge.
 * @Since 2023/12/25 17:04
 * @Version 1.0
 */
public class DataType {

    private char a = 'b';

    public static void main(String[] args) {
        String s = new String(new byte[]{97,98,99});
        System.out.println(s);
        char c = s.charAt(2);
        System.out.println(c);
        System.out.println(System.getenv());

    }
}
